triaxal (triaksal)

[L. tres (tri-), three, + axis, axis, + -al.] Having three axes: as, tri axal coördinates. triaxial (trī-ak'si-al), a. [L. tres ( tri- ), three, + axis, axis, + -al.] Having three axes, as some sponge-spicules. Although they [spicules] are quadriradiate, they are still only triaxial . Micros. Science, N. S., XXXII. 7. triaxon (tri-ak's on), a . and n. [ τρεῖς (τρι-), three, + άξων, axis.] Ι. a. Triaxial, as a sponge spicule; having three axes diverging a common center, resulting from linear growth from a center in three directions at an inclination of 120° to one another. See cut under sponge- spicule. II. n. A regular figure of three axes diverging from a common center, as a sponge-spicule with three such axes. Triaxon i a (trī-ak-sōʻni-ä), n. pl. [NL.: see tri axon.] Triaxon sponges as a subcla of calcareous sponges with simple canal-system and triaxon spicules. triaxon i an (tri-ak-sō'ni-an), a. Same as tri axon. A triaxon i an star with five or six rays. Amer . Nat ., XXI. 938.